The predictive value of the sFlt-1/PlGF ratio in suspected preeclampsia in a New Zealand population: A prospective cohort study.
Aust N Z J Obstet Gynaecol
; 63(1): 34-41, 2023 02.
Article
em En
| MEDLINE
| ID: mdl-35670085
ABSTRACT
BACKGROUND:
Internationally, placental growth factor (PlGF)-based tests are used as prognostic markers in suspected preeclampsia. However, Ministry of Health guidelines do not currently endorse PlGF-based tests in New Zealand (NZ).AIMS:
To investigate the predictive value of soluble fms-like tyrosine kinase 1 (sFlt-1)/PlGF ratio in suspected preeclampsia in a NZ population. MATERIALS ANDMETHODS:
A prospective cohort study of singleton pregnancies at 20+0 -36+6 weeks gestation with suspected preeclampsia as defined by Society of Obstetric Medicine Australia and NZ (SOMANZ) criteria. PRIMARYOBJECTIVE:
to evaluate a sFlt-1/PlGF ratio >38 at ≤35+0 weeks gestation to predict birth ≤14 days. SECONDARYOBJECTIVES:
to assess a sFlt-1/PlGF ratio cut-off of 38 at ≤37+0 weeks gestation, to rule out preeclampsia ≤1 week, rule in preeclampsia ≤4 weeks, and to predict perinatal outcome. Clinicians were blinded to sFlt-1/PlGF ratio results.RESULTS:
Included were 222 participants, 19.4% Maori and 10.4% Pasifika. A sFlt-1/PlGF >38 predicted birth ≤14 days, positive predictive value (PPV) 51.4% (95% CI, 39.6-63.0) and negative predictive value (NPV) 95.9% (95% CI, 91.4-98.1), median (interquartile range) days to birth 14 (2-27) vs 49 (33-70), P < 0.000. A sFlt-1/PlGF cut-off of 38 ruled out preeclampsia ≤1 week (NPV 96.2% (95% CI, 92.3-98.2)) and ruled in preeclampsia ≤4 weeks (PPV 75.0% (95% CI, 65.0-82.9)). A sFlt-1/PlGF >38 was associated with greater perinatal morbidity.CONCLUSIONS:
The predictive value of the sFlt-1/PlGF ratio in NZ is comparable to that reported in international trials. Used in clinical practice the sFlt-1/PlGF ratio may aid risk stratification in suspected preeclampsia, directing limited resources to those pregnancies at highest risk.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pré-Eclâmpsia
Tipo de estudo:
Etiology_studies
/
Guideline
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Female
/
Humans
/
Pregnancy
País/Região como assunto:
Oceania
Idioma:
En
Revista:
Aust N Z J Obstet Gynaecol
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Nova Zelândia